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什么叫心力储备?

问答题
2021-12-30 13:18
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正确答案

心脏能适应机体需要而提高心输出量的能力称为心力储备。因此,心力储备可用心脏工作的最大能力与安静时的能力之差来表示。例如安静时心输出量为5L/min,而劳动或运动时的最大输出量为35L/min,则心力储备为30L/min。除了心输出量之外,心率、搏量、搏功等均有储备。


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